盾构隧道纵缝接头抗弯计算模型研究

doi:10.13722/j.cnki.jrme.2015.0332

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Abstract A stress related stiffness reduction factor is firstly proposed to describe flexural behaviour of shield segment joint without packing material. An empirical formula of the factor is suggested based on the results of flexural tests. Explicit analytical solutions of moment-rotation relation for shield segment joint is derived，which can be directly used in structure analysis of shield segments. The suggested analytical solutions can reflect the influence of axial force on the flexural behaviour. The entire process that the flexural stiffness of segment joint decreases with increasing rotation angle until the destruction can be described well by the suggested analytical solutions. The comparison with full scale tests shows that the analytical solutions have good agreement with test results. Therefore，the analytical solutions suggested here may have great value in engineering.

Key words： tunnelling engineering shield tunnel segment joint flexural behavior calculation model

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	Articles by authors
	CHEN Biguang1
	2
	CHEN Weizhong2
	GUO Xiaohong1

Cite this article:

CHEN Biguang1,2,CHEN Weizhong2, et al. Study on calculation model of flexural behavior of shield segment joint[J]. , 2016, 35(S1): 2953-2959.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.0332 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/IS1/2953

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